Fix re-ordering of StoredObjectVersion in the list of versions

As some intermediate versions are remove, this may lead to situation where the indexes are not continous. In that case, the array is not a list, and is rendered as an array with numeric indexes, instead of a list of elements. The HistoryListItem component fails to render.

- Ensured proper handling of removed versions by using `array_values` to reindex items.
- Added test case to validate the result after removing a version.
- Asserted the results are a proper list in the API response.

.changes/unreleased/Fixed-20251003-224044.yaml

@@ -0,0 +1,6 @@
+kind: Fixed
+body: Fix the rendering of list of StoredObjectVersions, where there are kept version (before converting to pdf) and intermediate versions deleted
+time: 2025-10-03T22:40:44.685474863+02:00
+custom:
+    Issue: ""
+    SchemaChange: No schema change

src/Bundle/ChillDocStoreBundle/Controller/StoredObjectVersionApiController.php

@@ -59,7 +59,7 @@ final readonly class StoredObjectVersionApiController
 
         return new JsonResponse(
             $this->serializer->serialize(
-                new Collection($items, $paginator),
+                new Collection(array_values($items->toArray()), $paginator),
                 'json',
                 [AbstractNormalizer::GROUPS => ['read', StoredObjectVersionNormalizer::WITH_POINT_IN_TIMES_CONTEXT, StoredObjectVersionNormalizer::WITH_RESTORED_CONTEXT]]
             ),

src/Bundle/ChillDocStoreBundle/Tests/Controller/StoredObjectVersionApiControllerTest.php

@@ -40,6 +40,10 @@ class StoredObjectVersionApiControllerTest extends \PHPUnit\Framework\TestCase
             $storedObject->registerVersion();
         }
 
+        // remove one version in the history
+        $v5 = $storedObject->getVersions()->get(5);
+        $storedObject->removeVersion($v5);
+
         $security = $this->prophesize(Security::class);
         $security->isGranted(StoredObjectRoleEnum::SEE->value, $storedObject)
             ->willReturn(true)
@@ -53,6 +57,7 @@ class StoredObjectVersionApiControllerTest extends \PHPUnit\Framework\TestCase
         self::assertEquals($response->getStatusCode(), 200);
         self::assertIsArray($body);
         self::assertArrayHasKey('results', $body);
+        self::assertIsList($body['results']);
         self::assertCount(10, $body['results']);
     }